Update .cncf-maintainers & OWNERS_ALIASES (#6041)

* removed camila and marc from cncf-maintainers
* removed marc from OWNERS_ALIASES
* added everettraven to OWNERS_ALIASES as reviewer

Signed-off-by: jesus m. rodriguez <[email protected]>

Author: jmrodri

.cncf-maintainers

@@ -1,22 +1,19 @@
 approvers:
 - asmacdo
-- camilamacedo86
 - fabianvf
 - jberkhahn
 - jmrodri
 - joelanford
-- marc-obrien
 - rashmigottipati
 - theishshah
 - varshaprasad96
 reviewers:
 - asmacdo
-- camilamacedo86
+- everettraven
 - fabianvf
 - jberkhahn
 - jmrodri
 - joelanford
-- marc-obrien
 - rashmigottipati
 - theishshah
 - varshaprasad96

OWNERS_ALIASES

@@ -8,7 +8,6 @@ aliases:
   - asmacdo
   - jmrodri
   - joelanford
-  - marc-obrien
 
   # Contributors who can approve any PRs in the repo.
   sdk-approvers:
@@ -20,6 +19,7 @@ aliases:
 
   # Contributors who can review and LGTM any PRs in the repo.
   sdk-reviewers:
+  - everettraven
 
   # Contributors who were approvers that are no longer directly involved with the project.
   # This role is symbolic.
@@ -29,3 +29,4 @@ aliases:
   - shawn-hurley
   - estroz
   - camilamacedo86
+  - marc-obrien